Re: 400G forwarding - how does it work?

Saku Ytti wrote:

...

which is, unlike Yttinet, the reality.

Yttinet has pesky customers who care about single TCP performance over long fat links, and observe poor performance with shallow buffers at the provider end.

With such an imaginary assumption, according to the end to end principle, the customers (the ends) should use paced TCP instead of paying unnecessarily bloated amount of money to intelligent intermediate entities of ISPs using expensive routers with bloated buffers.

Yttinet is cost sensitive and does not want to do work, unless sufficiently motivated by paying customers.

I understand that if customers follow the end to end principle, revenue of "intelligent" ISPs will be reduced. Masataka Ohta